Firefox has automatic updates, its extensions have it, even ubiquity scripts have it; but not greasemonkey. It is not a great user experience to have to update greasemonkey scripts every time the site changes.
The yousable tube fix script has a module that takes checks for new versions of the script and automatically updates them. The idea was simple and effective. The page where the greasemonkey script is hosted has a unique string somewhere in the page, that looks like #[V:1]#. The number "1" in the string denotes the latest version available.
The update module is configured with the location of the script as identified by the number in the URL of the script on userscripts.org. The script also have a version that indicates the version of the script file. The module fetches the script page using GM_XMLHTTPRequest and searches for the version script. If it finds that the number on the page is greater than the one specified in the file, the location of the script is opened. Since greasemonkey is installed, the *.user.js file is recognized as a script and the greasemonkey dialog shows up.
To add this functionality to your greasemonkey script, just copy and paste the following snippet and configure the following.

Paste this scriptlet at the bottom of your script.

Set scriptPage to the number in the URL of userscripts page.

Set scriptVersion as the version of the script in source code.

In the description of the script, add your version number as
#[V:2]#, where 2 is the integer version number.

Reddit made a couple of changes on their site earlier this week, breaking the current implementation of the reddit bar. This post details the two quick fixes to get the script working again.The first fix was to remove the 1x1 pixel image that seems to appear on the reddit page. The picture, present at http://pixel.reddit.com/pixel/of_destiny.png?v= seems liek a tracker image. This change isThe second change was to remove the correct content; apparently, another DIV was assigned to the content class due to which, the actual content was still showing. The iFrame containing the page gets rendered below this. The change was to hide content[1].You may have to install to the greasemonkey script again to get it working. I am also working on a generic way to update greasemonkey scripts, something I picked up from Yousable Tube Fix script.

Most rating widgets I have come across show stars in half or whole. This is usually implemented using images corresponding to half, full or empty stars. The user hovers over the widget to set the rating, again between whole and half stars.However, sites like IMDB and Orkut have more granular ratings, showing partial stars. The implementation was interesting and in a way, more efficient. Doing it seems to be simpler than the older way of showing ratings.Two images that look something like and are used to create the effect. The second image (or empty stars) is used as the background of a DIV. Inside this DIV, is placed another DIV, whose background repeated image is the first image (or filled stars). The width of he inner DIV depends on the rating. User interaction would be similar to sliders, with mouse drag replaced with hover.